CN111042934A - Vehicle starting control method, device, equipment and storage medium - Google Patents
Vehicle starting control method, device, equipment and storage medium Download PDFInfo
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- CN111042934A CN111042934A CN201911388854.0A CN201911388854A CN111042934A CN 111042934 A CN111042934 A CN 111042934A CN 201911388854 A CN201911388854 A CN 201911388854A CN 111042934 A CN111042934 A CN 111042934A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
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- Combustion & Propulsion (AREA)
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Abstract
The embodiment of the invention provides a vehicle starting control method, a vehicle starting control device and a storage medium, wherein the method judges whether a natural gas engine vehicle enters a starting state or not according to whether vehicle state information changes or not when the engine is in an idle working condition before starting, wherein the vehicle state information comprises a gear state signal and/or a clutch state signal; and if the vehicle is determined to enter the starting state, controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle starts. According to the embodiment of the invention, the vehicle starting can be rapidly determined through the change of the vehicle state information, and meanwhile, the characteristic of slow response of the natural gas engine is comprehensively considered, the engine is controlled to increase the output torque of the engine when the vehicle is started, so that the instant increase of the load of the engine caused by the vehicle starting is rapidly responded, and the problem of the undershoot of the rotating speed or flameout when the vehicle is started is solved to a certain extent.
Description
Technical Field
The embodiment of the invention relates to the technical field of engines, in particular to a vehicle starting control method, a vehicle starting control device, vehicle starting control equipment and a storage medium.
Background
In recent years, natural gas engines are used more and more widely due to the fact that the natural gas engines use clean energy and have social environmental protection benefits and economic benefits.
The existing natural gas engine has low charging efficiency and a certain distance from a throttle valve on an air inlet pipe to an engine cylinder, so that a certain delay is caused from the set air inflow to the actual air inflow into the cylinder, and the transient response of the engine is influenced; when a vehicle using the natural gas engine starts, a certain time delay exists from the vehicle speed to the vehicle speed signal recognized by the engine control unit, the recognized vehicle speed signal is adopted by the engine control unit as a trigger condition for starting control, and the speed per hour of the engine is undershot when the whole vehicle starts or even flameout is caused due to poor transient response of the engine and the delay of the vehicle speed signal.
Disclosure of Invention
The embodiment of the invention provides a vehicle starting control method, a vehicle starting control device, vehicle starting control equipment and a storage medium, and aims to solve the problem that a vehicle using a natural gas engine is undershot or stalled when starting.
In a first aspect, an embodiment of the present invention provides a vehicle starting control method, where an engine of a vehicle is a natural gas engine, where the method includes:
when the engine is in an idle working condition before starting, judging whether the vehicle enters a starting state or not according to whether vehicle state information changes or not, wherein the vehicle state information comprises a gear state signal and/or a clutch state signal;
and if the vehicle is determined to enter the starting state, controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle starts.
In one possible design, the controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle is started comprises:
and controlling at least one of an idle speed set value of the engine, an air-fuel ratio of the engine, a pre-control torque required by starting and an ignition advance angle according to the vehicle configuration information so as to increase the output torque of the engine when the vehicle starts.
In one possible design, the vehicle configuration information includes a vehicle type and a load.
In one possible design, the determining whether the vehicle enters the starting state according to whether the vehicle state information changes includes:
judging whether the gear state is changed from a neutral gear state to a gear engaging state or not according to the gear state signal; and/or
And judging whether the clutch is changed from a treading state to a releasing state or not according to the clutch state signal.
In a possible design, before determining whether the vehicle enters the starting state according to whether the vehicle state information changes, the method further includes:
acquiring the information of the rotating speed and the idle speed state of the engine;
and judging whether the engine is in an idling working condition before starting or not according to the engine rotating speed and the engine idling state information.
In a second aspect, an embodiment of the present invention provides a vehicle start control device, where an engine of a vehicle is a natural gas engine, the device including:
the judging module is used for judging whether the vehicle enters a starting state or not according to whether vehicle state information changes or not when the engine is in an idle working condition before starting, wherein the vehicle state information comprises a gear state signal and/or a clutch state signal;
and the control module is used for controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle is started when the vehicle is determined to be in the starting state.
In one possible design, the control module, when controlling the engine to increase the output torque of the engine at vehicle launch according to the vehicle configuration information, is configured to:
and controlling at least one of an idle speed set value of the engine, an air-fuel ratio of the engine, a pre-control torque required by starting and an ignition advance angle according to the vehicle configuration information so as to increase the output torque of the engine when the vehicle starts.
In one possible design, the vehicle configuration information includes a vehicle type and a load.
In one possible design, when determining whether the vehicle enters the starting state according to whether the vehicle state information changes, the determining module is configured to:
judging whether the gear state is changed from a neutral gear state to a gear engaging state or not according to the gear state signal; and/or
And judging whether the clutch is changed from a treading state to a releasing state or not according to the clutch state signal.
In one possible design, before determining whether the vehicle enters the starting state according to whether the vehicle state information changes, the determining module is further configured to:
acquiring the information of the rotating speed and the idle speed state of the engine; and judging whether the engine is in an idling working condition before starting or not according to the engine rotating speed and the engine idling state information.
In a third aspect, an embodiment of the present invention provides a vehicle start control apparatus including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executes computer-executable instructions stored by the memory to cause the at least one processor to perform the vehicle launch control method as set forth in the first aspect and various possible designs of the first aspect.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer executes instructions, and when a processor executes the computer to execute the instructions, the vehicle start control method according to the first aspect and various possible designs of the first aspect is implemented.
According to the vehicle starting control method, the vehicle starting control device, the vehicle starting control equipment and the storage medium, when an engine is in an idle working condition before starting at present, whether the vehicle enters a starting state or not is judged according to whether vehicle state information changes or not, wherein the vehicle state information comprises a gear state signal and/or a clutch state signal; and if the vehicle is determined to enter the starting state, controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle starts. According to the embodiment of the invention, the vehicle starting can be rapidly determined through the change of the vehicle state information, and meanwhile, the characteristic of slow response of the natural gas engine is comprehensively considered, the engine is controlled to increase the output torque of the engine when the vehicle is started, so that the instant increase of the load of the engine caused by the vehicle starting is rapidly responded, and the problem of the undershoot of the rotating speed or flameout when the vehicle is started is solved to a certain extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vehicle start control satisfaction determining system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a vehicle starting control method according to another embodiment of the invention;
fig. 3 is a schematic structural diagram of a vehicle starting control device according to an embodiment of the invention;
fig. 4 is a schematic diagram of a hardware structure of the vehicle starting control device provided by the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Because the natural gas engine has low charging efficiency and a certain distance from a throttle valve on an air inlet pipe to an engine cylinder, a certain delay is caused from the set air inflow to the actual air inflow into the cylinder, so that the transient response of the engine is influenced, particularly, when the vehicle starts, because a Control Unit such as an engine ECU (Electronic Control Unit) from the vehicle speed to the engine recognizes that a certain time delay exists in a vehicle speed signal (the ECU directly acquires the vehicle speed through a vehicle speed sensor, the vehicle speed response is faster than the vehicle speed response received through a CAN message, but at present, most of the ECUs on the vehicle receive the vehicle speed acquired by other controllers through the CAN message, and a larger delay exists from the acquisition of the vehicle speed by the other controllers to the transmission of the CAN message to the ECU), due to poor transient response of the engine and delay of a vehicle speed signal, the load of the engine is increased instantly when the vehicle starts, and the output torque of the engine is insufficient, so that the rotating speed of the vehicle is undershot when the vehicle starts, and even the vehicle is stalled.
The embodiment of the invention considers the characteristics of low inflation efficiency, delayed air intake and the like of a natural gas engine, and in addition, the ECU of the engine generally receives a vehicle speed signal through a CAN message, and the time delay exists from the vehicle starting to the time when the ECU receives the vehicle speed signal, so the vehicle starting working condition CAN not be identified through the vehicle speed signal as a diesel engine, and simultaneously the vehicle starting control CAN not be carried out through only raising the idle speed of the engine as a diesel engine, therefore, the embodiment of the invention identifies whether the vehicle enters the starting working condition or not by identifying whether the vehicle state information (comprising a gear state signal and/or a clutch state signal) changes, and simultaneously comprehensively considers the characteristic of slow response of the natural gas engine, controls the engine according to different vehicle configuration information to increase the output torque of the engine when the vehicle starts, and particularly CAN raise the idle speed set value, at least one mode of increasing pre-control torque, reducing air-fuel ratio or adjusting the ignition advance angle is adopted to quickly respond to the instant increase of the engine load caused by vehicle starting, so that the problem of undershoot of the rotating speed or flameout of the vehicle during starting is solved to a certain extent.
The vehicle take-off control process of the embodiment of the invention will be explained and explained in detail with reference to the specific embodiment.
Fig. 1 is a schematic flow chart of a vehicle starting control method provided by an embodiment of the invention. The embodiment is applied to a vehicle with a natural gas engine, and the execution subject of the method can be a control unit of the engine, such as an ECU. As shown in fig. 2, the vehicle start control method includes:
s101, when the engine is in an idle working condition before starting, judging whether the vehicle enters a starting state or not according to whether vehicle state information changes or not, wherein the vehicle state information comprises a gear state signal and/or a clutch state signal.
In this embodiment, whether the engine is currently in an idle condition before starting may be determined, vehicle state information may be monitored when it is determined that the engine is currently in the idle condition before starting, where the vehicle state information may include, but is not limited to, a gear state signal and/or a clutch state signal, whether the vehicle state information changes to determine whether the vehicle enters a starting state, and whether the vehicle enters the starting state is determined if the vehicle state information changes, for example, the gear state signal changes (the gear state changes from a neutral state to a gear engaging state), or the clutch state signal changes (the clutch changes from a clutch engaged state to a clutch disengaged state). The vehicle state information directly enters the control unit of the engine, and the control unit of the engine judges whether the vehicle enters a starting state or not by judging whether the vehicle state information changes or not, so that the corresponding speed is high.
And S102, if the vehicle is determined to enter a starting state, controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle starts.
In the embodiment, when the vehicle is determined to enter the starting state, the engine is controlled according to the vehicle configuration information at the moment when the vehicle enters the starting state so as to increase the output torque of the engine when the vehicle starts, so that the instant increase of the engine load caused by the vehicle starting is quickly responded, and the problem of the rotating speed undershoot or flameout when the vehicle starts is solved to a certain extent. Specifically, the engine may be controlled to increase the output torque of the engine when the vehicle starts by at least one of raising the idle speed set value of the engine, increasing the pre-control torque, lowering the air-fuel ratio, adjusting the advance angle of ignition, and the like.
Since the increasing degree of the engine load is different when starting the vehicle with different vehicle types and different loads, in the embodiment, different schemes for increasing the output torque of the engine when starting the vehicle can be determined according to the vehicle configuration information, wherein the vehicle configuration information can include, but is not limited to, the vehicle type and the load.
According to the vehicle starting control method provided by the embodiment, when the engine is in the idle working condition before starting, whether the vehicle enters a starting state or not is judged according to whether the vehicle state information changes or not, wherein the vehicle state information comprises a gear state signal and/or a clutch state signal; and if the vehicle is determined to enter the starting state, controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle starts. According to the method, the vehicle starting can be rapidly determined through the change of the vehicle state information, the characteristic of slow response of the natural gas engine is comprehensively considered, the engine is controlled to increase the output torque of the engine when the vehicle is started, the instant increase of the load of the engine caused by the vehicle starting is rapidly responded, and therefore the problem of undershoot of the rotating speed or flameout when the vehicle is started is solved to a certain extent.
On the basis of the above embodiment, the controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle is started includes:
and controlling at least one of an idle speed set value of the engine, an air-fuel ratio of the engine, a pre-control torque required by starting and an ignition advance angle according to the vehicle configuration information so as to increase the output torque of the engine when the vehicle starts.
Specifically, in an alternative embodiment, a fixed engine idle speed setting value may be selected according to the vehicle configuration information, or the engine idle speed setting value may be determined by first determining the engine idle speed increase value according to the current engine idle speed and the vehicle configuration information, and adding the engine idle speed increase value to the current engine idle speed increase value to determine the engine idle speed setting value. Further, the actual rotating speed of the engine can be increased according to the idle speed set value of the engine so as to respond to the requirement of idle speed starting of the vehicle. Of course, the idle speed set value of the engine can also be calibrated according to the actual application condition, and the details are not described herein.
In another alternative embodiment, the air-fuel ratio required for starting can be determined according to the vehicle configuration information, and the output torque of the engine is increased by injecting more fuel gas with proper amount (namely, reducing the air-fuel ratio) for starting, so as to respond to the requirement of idle starting of the vehicle. Of course, the air-fuel ratio reduction value may be determined based on the current air-fuel ratio at the engine idle speed and the vehicle configuration information, and the air-fuel ratio required for starting may be determined by subtracting the air-fuel ratio reduction value from the current air-fuel ratio at the engine idle speed. Of course, the air-fuel ratio can also be calibrated according to the actual application, and details are not described here.
In another alternative embodiment, the desired pre-control torque for launch may be determined based on vehicle configuration information, and the vehicle idle launch request may be responded to by increasing the engine output torque by an amount appropriate for launch. Of course, the torque increase value can also be determined according to the current idle torque of the engine and the vehicle configuration information, and the torque increase value is added on the basis of the current idle torque of the engine to determine the pre-control torque required for starting. Of course, the required pre-control torque during starting can also be calibrated according to the actual application condition, and the details are not repeated here.
In another alternative embodiment, the start-time spark advance angle may be determined based on vehicle configuration information, for example, by increasing the spark advance angle appropriately to increase the engine output torque when the vehicle is started, in response to a request for idle start of the vehicle. Of course, the correction value of the ignition advance angle can also be determined according to the current ignition advance angle when the engine is idling and the vehicle configuration information, and the ignition advance angle at the starting time can be determined by correcting on the basis of the current ignition advance angle when the engine is idling. Of course, the ignition advance angle at the time of starting can also be calibrated according to the actual application condition, and is not described herein again.
On the basis of the above-described embodiment, at least one way of increasing the output torque of the engine at the time of vehicle start may be selected. For example, a vehicle with a heavy load may be operated in a combination of the above-described modes, and a higher engine output torque may be used in response to a momentary increase in engine load due to vehicle launch, while a vehicle with a light load may be used.
On the basis of the above-described embodiment, as shown in fig. 2, the present embodiment provides a vehicle start control method including:
s201, obtaining the rotating speed and the idle speed state information of the engine;
and S202, judging whether the engine is in an idling working condition before starting or not according to the engine rotating speed and the engine idling state information.
In this embodiment, after the engine speed and the engine idle state information are obtained, if it is determined that the current value of the engine idle state information is 1, it is determined that the engine is currently in an idle working condition before starting; and if the current value of the idle speed state information of the engine is determined to be 0, determining that the engine is not in the idle speed working condition before starting. Of course, if it is determined that the current value of the engine idle state information is not 1, the waiting is continued until the current value of the engine idle state information becomes 1, and the subsequent steps are executed.
S203, judging whether the gear state is changed from a neutral gear state to a gear engaging state or not according to the gear state signal if the engine is determined to be in the idle working condition before starting; and/or judging whether the clutch is changed from a treading state to a releasing state according to the clutch state signal;
in the present embodiment, the gear state signal and/or the clutch state signal may be acquired first. And if the gear state signal value is monitored to be changed from 1 to 0, the gear state is determined to be changed from the neutral state to the gear engaging state. Similarly, the clutch state signal is 1 when the clutch is in the treading state, the clutch state signal is 0 when the clutch is in the releasing state, and if the clutch state signal is monitored to be changed from 1 to 0, the clutch is determined to be changed from the treading state to the releasing state. In the embodiment, the vehicle is determined to enter the starting state by the falling edge of the change of the gear state signal and/or the clutch state signal, and the response speed is high. Of course, if the gear state signal and the clutch state signal do not have a falling edge, the waiting is continued until the falling edge occurs, and then the subsequent steps are executed.
And S204, if the gear state is changed from the neutral state to the gear engaging state and/or the clutch is changed from the stepping state to the releasing state, determining that the vehicle enters a starting state, and controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle starts.
In the present embodiment, the principle and technical effect of S204 are the same as those of the above embodiments, and are not described herein again.
According to the vehicle starting control method provided by each embodiment, when the engine is in an idle working condition before starting, whether the vehicle enters a starting state or not is judged according to whether the vehicle state information changes or not, wherein the vehicle state information comprises a gear state signal and/or a clutch state signal; and if the vehicle is determined to enter the starting state, controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle starts. According to the method, the vehicle starting can be rapidly determined through the change of the vehicle state information, the characteristic of slow response of the natural gas engine is comprehensively considered, the engine is controlled to increase the output torque of the engine when the vehicle is started, the instant increase of the load of the engine caused by the vehicle starting is rapidly responded, and therefore the problem of undershoot of the rotating speed or flameout when the vehicle is started is solved to a certain extent.
Fig. 3 is a schematic structural diagram of a vehicle starting control device according to an embodiment of the present invention. The engine of the vehicle is a natural gas engine, and as shown in fig. 3, the vehicle starting control device 300 comprises a judging module 301 and a control module 302.
The judging module 301 is configured to judge whether the vehicle enters a starting state according to whether vehicle state information changes when the engine is currently in an idle working condition before starting, where the vehicle state information includes a gear state signal and/or a clutch state signal;
the control module 302 is configured to control the engine to increase an output torque of the engine at the vehicle start according to the vehicle configuration information when it is determined that the vehicle enters the start state.
In one possible design, the control module 302, when controlling the engine to increase the output torque of the engine at vehicle launch based on the vehicle configuration information, is configured to:
and controlling at least one of an idle speed set value of the engine, an air-fuel ratio of the engine, a pre-control torque required by starting and an ignition advance angle according to the vehicle configuration information so as to increase the output torque of the engine when the vehicle starts.
In one possible design, the vehicle configuration information includes a vehicle type and a load.
In one possible design, when determining whether the vehicle enters the starting state according to whether the vehicle state information changes, the determining module 301 is configured to:
judging whether the gear state is changed from a neutral gear state to a gear engaging state or not according to the gear state signal; and/or
And judging whether the clutch is changed from a treading state to a releasing state or not according to the clutch state signal.
In one possible design, before determining whether the vehicle enters the starting state according to whether the vehicle state information changes, the determining module 301 is further configured to:
acquiring the information of the rotating speed and the idle speed state of the engine; and judging whether the engine is in an idling working condition before starting or not according to the engine rotating speed and the engine idling state information.
The vehicle starting control device provided in this embodiment may be used to implement the technical solutions of the vehicle starting control method embodiments, and the implementation principles and technical effects thereof are similar, and this embodiment is not described herein again.
The vehicle starting control device provided by the embodiment judges whether a natural gas engine vehicle enters a starting state according to whether vehicle state information changes or not when the engine is in an idle working condition before starting at present, wherein the vehicle state information comprises a gear state signal and/or a clutch state signal; and if the vehicle is determined to enter the starting state, controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle starts. According to the method, the vehicle starting can be rapidly determined through the change of the vehicle state information, the characteristic of slow response of the natural gas engine is comprehensively considered, the engine is controlled to increase the output torque of the engine when the vehicle is started, the instant increase of the load of the engine caused by the vehicle starting is rapidly responded, and therefore the problem of undershoot of the rotating speed or flameout when the vehicle is started is solved to a certain extent.
Fig. 4 is a schematic diagram of a hardware structure of the vehicle starting control device provided by the embodiment of the invention. As shown in fig. 4, the vehicle startup control apparatus 400 of the present embodiment includes: a processor 401 and a memory 402; wherein
A memory 402 for storing computer-executable instructions;
a processor 401 for executing computer-executable instructions stored by the memory to implement the various steps in the above-described embodiments. Reference may be made in particular to the description relating to the method embodiments described above.
Alternatively, the memory 402 may be separate or integrated with the processor 401.
When the memory 402 is provided separately, the vehicle take-off control apparatus further includes a bus 403 for connecting the memory 402 and the processor 401.
The embodiment of the invention also provides a computer-readable storage medium, wherein a computer executing instruction is stored in the computer-readable storage medium, and when a processor executes the computer executing instruction, the vehicle starting control method is realized.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to implement the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor to execute some steps of the methods described in the embodiments of the present application.
It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (Extended Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in an electronic device or host device.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A vehicle launch control method, characterized in that an engine of the vehicle is a natural gas engine, the method comprising:
when the engine is in an idle working condition before starting, judging whether the vehicle enters a starting state or not according to whether vehicle state information changes or not, wherein the vehicle state information comprises a gear state signal and/or a clutch state signal;
and if the vehicle is determined to enter the starting state, controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle starts.
2. The method of claim 1, wherein controlling the engine to increase the output torque of the engine at vehicle launch based on the vehicle configuration information comprises:
and controlling at least one of an idle speed set value of the engine, an air-fuel ratio of the engine, a pre-control torque required by starting and an ignition advance angle according to the vehicle configuration information so as to increase the output torque of the engine when the vehicle starts.
3. The method of claim 2, wherein the vehicle configuration information includes a vehicle type and a load.
4. The method according to any one of claims 1-3, wherein the determining whether the vehicle enters a launch state based on whether the vehicle state information changes comprises:
judging whether the gear state is changed from a neutral gear state to a gear engaging state or not according to the gear state signal; and/or
And judging whether the clutch is changed from a treading state to a releasing state or not according to the clutch state signal.
5. The method according to any one of claims 1-3, wherein before determining whether the vehicle enters a start state according to whether the vehicle state information changes, further comprising:
acquiring the information of the rotating speed and the idle speed state of the engine;
and judging whether the engine is in an idling working condition before starting or not according to the engine rotating speed and the engine idling state information.
6. A vehicle start control apparatus, characterized in that an engine of the vehicle is a natural gas engine, the apparatus comprising:
the judging module is used for judging whether the vehicle enters a starting state or not according to whether vehicle state information changes or not when the engine is in an idle working condition before starting, wherein the vehicle state information comprises a gear state signal and/or a clutch state signal;
and the control module is used for controlling the engine according to the vehicle configuration information to increase the output torque of the engine when the vehicle is started when the vehicle is determined to be in the starting state.
7. The apparatus of claim 6, wherein the control module, when controlling the engine to increase the output torque of the engine at vehicle launch based on the vehicle configuration information, is configured to:
and controlling at least one of an idle speed set value of the engine, an air-fuel ratio of the engine, a pre-control torque required by starting and an ignition advance angle according to the vehicle configuration information so as to increase the output torque of the engine when the vehicle starts.
8. The device according to claim 6 or 7, wherein the judging module, when judging whether the vehicle enters a starting state according to whether the vehicle state information changes, is configured to:
judging whether the gear state is changed from a neutral gear state to a gear engaging state or not according to the gear state signal; and/or
Judging whether the clutch is changed from a treading state to a releasing state or not according to the clutch state signal;
the judging module is used for judging whether the vehicle enters a starting state or not according to the change of the vehicle state information, and is also used for:
acquiring the information of the rotating speed and the idle speed state of the engine; and judging whether the engine is in an idling working condition before starting or not according to the engine rotating speed and the engine idling state information.
9. A vehicle start control apparatus characterized by comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the method of any one of claims 1-5.
10. A computer-readable storage medium having computer-executable instructions stored thereon which, when executed by a processor, implement the method of any one of claims 1-5.
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